NO. I 



SMITHSONIAN i:X ri.OKATlONS, I919 



17 



were also carried on. Work is now under wa\- on the study of the 

 mineraloi;}' of serpentine and its relation to the chlorite ^roup, and 

 also the correlation of the chemical composition and the o])tical 

 pro])erties of rhodonite, the latter in collahoration with J)r. E. S. 

 Larsen of the U. S. Geological Survey. 



In October various localities in Connecticut were visited by 

 Assistant Curator Earl \'. Shannon, including" the vicinity of Long 

 Hill in 'J'runiljull. A\here tungsten has been mined in years past. 

 I-lxtensive collections comprising much interesting" material were 



Fig. 17. — TransportiiiK los.sil specimens in .SoutlR'astcrn hulian.i. 

 PhotoKraiih hy I')asskT. 



obtained which will be studied and described. Tiic trap iiuanio of 

 Meriden, Conn., were also visited and extensive collections of the 

 zeolites and other secondary minerals secured. The pe.c^matite locali- 

 ties of (V)llin's Hill in Portland ; the workings of the old cob.alt mine 

 and the old lithia mine in ( h.itbani, an(| a nnnibi-r of fcldsp.ir (|nar- 

 ries in this region wnrc \isitrd and collections of the rrprrscnlati\-e 

 minerals secured. .Much oi the material collected as ;ili(i\c ha^ lieeu 

 carefully examini'd and descriptitjns will ;i])pear in foi theoniiuL; num- 

 bers of the i'roi-eedinj/s. 



